221350090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{271}}^1$

素因数の和:455

約数の個数: 64

約数和(自身を含む): 441971712

約数和(自身を除く): 220621622

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 103, 122, 130, 206, 271, 305, 515, 542, 610, 793, 1030, 1339, 1355, 1586, 2678, 2710, 3523, 3965, 6283, 6695, 7046, 7930, 12566, 13390, 16531, 17615, 27913, 31415, 33062, 35230, 55826, 62830, 81679, 82655, 139565, 163358, 165310, 214903, 279130, 362869, 408395, 429806, 725738, 816790, 1074515, 1702693, 1814345, 2149030, 3405386, 3628690, 8513465, 17026930, 22135009, 44270018, 110675045, 221350090]

約数ペア:

[(1, 221350090), (2, 110675045), (5, 44270018), (10, 22135009), (13, 17026930), (26, 8513465), (61, 3628690), (65, 3405386), (103, 2149030), (122, 1814345), (130, 1702693), (206, 1074515), (271, 816790), (305, 725738), (515, 429806), (542, 408395), (610, 362869), (793, 279130), (1030, 214903), (1339, 165310), (1355, 163358), (1586, 139565), (2678, 82655), (2710, 81679), (3523, 62830), (3965, 55826), (6283, 35230), (6695, 33062), (7046, 31415), (7930, 27913), (12566, 17615), (13390, 16531)]